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Rinkcr Materials <br /> , April I8, 200? <br /> Pagc 5 <br /> Wc reaommcnded to Rinker fvlaterials that FSA be contacted [o havc the pand liner <br /> (compactcd till fill) cvaluated for leaks and/or to see that it was consiructed properly. We <br /> understand that a lincr may not have been wnswcted, especially on the �vest end where the <br /> ou[wash sand and gravel deposits were exposed along the base of the pond. Accordingly, we <br /> recommended that the pond liner be properly desibmed and construcL:d. <br /> � Bascd on our o6scrvations it is likely that water seepa�;e From Ihe FSA dctention pond will <br /> infiltratc soils on ihe Scaway Lot 8 preperry as wcl� as into thc stnctural fill located on Rinker <br /> Matens+is' property to lhe north. Seepage tiom the detentiun pond may Icad to scttlement of thc <br /> fill. 1(not mitigated, localized seUlement muy accur in the arca immediately west of the bu�ed <br /> hibhwall on Ihe Seaway Lo[ 8 properry and on Rinkcr blatenals' property immcdiately to [he <br /> north oC the prcperty line. Proper design and conshuction oC a liner for the delention pond should <br /> mitigalc conccros regarding potential scttlement af the adjacent structural fiil. <br /> CONCLUSIONS <br /> I3ased c�r. our obscrvations, it is our opini�n that the work discussed herein was completed in <br /> substantial r,ompliance with our rccommendations and the Lctter of Understanding. <br /> - � o � <br /> �Vc trust this summary letter meets your current needs. [t was a pleasure to work with you on <br /> ' this project. ICyou have any questions rcgarding the content of this letter, pkase contact us. <br /> �.� c. n��Tc Rcspcctfully submittcd, <br /> �4'p'�b/�v-��;�yi,�,y� GeoGngineers, Ine. <br /> �F,4j �j Y �, . �-G�-�Y�-���=r/' <br /> G'�M C: , // <br /> t,�, '�. O' � ��� / <br /> �o �n � C <br /> 0 4' 3290� q Cw Raben C. Ivletcalfe, P.L. <br /> '�'Fs;��;������ SeniorG:otechnical6nginecr <br /> �'�'/L ,t,y��n {i1 b�f„�'c� <br /> EXPIRES a / 11 / •'� <br /> rdan M. Dcnby, P.E. <br /> Yrincipal <br /> !tcyt:cat�j� <br /> RcJm:\IlllfnalseVl'I'WJOJRtv L.Ju: <br /> f our copies:>ubmittcd <br /> Cop}righPD?00?by GtuLubiimus.Ine. .111 nghis reservtA. <br /> G c n G n g i t c c r s Filc No. GI9LQD7-O3-IIJO <br />